1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0136978a6c0760f3f699149198e04051700322aabb9b75cd778d2cf98a2b6d45. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/50ca1b4c-f1f8-46f8-80b0-12fee5db5e60.json and https://artists.proofprofile.net/proofs/artist/50ca1b4c-f1f8-46f8-80b0-12fee5db5e60.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11840be48183d01d965b48420730dc90911eecb36791fe25398a8e00fd813b57. Chain 2 (Bitcoin): anchored in block 957745 (2026-07-12T19:20:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MYA118600061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90441be4fb88dcf808f9e23a68c7a92d674bdaea01e7e956f9d5fdc7bb1d837c. Chain 2 (Bitcoin): anchored in block 958558 (2026-07-18T13:44:16Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MYA118700026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7c7d73397a6ef4214b370291848d48876e369ca65580601a698c7ddf8e43d56. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MYA118700027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08747f7190349825565657d59e1de6117f614390fdd9026bb42e58f3dcb6ceae. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MYA118900042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf5904dc8421142411a2b63f2ed53da86a0ed1ee105cfb0fece5cb839764a12c. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MYA118900050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa77a9f9105720a4d58b6040057adbd99ea517a092dec3c983dd5d231f5a26493. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MYA119100032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc98a15f243cc626a68bba9100fd5d03d02a0333bd4c2692c13920c8abd0c84a7. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T02:22:58Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MYA118600070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3907d7c793c916fd3858dd00affeed49fe046349ad96d10afd8cb1c1d69c572c. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MYA118700022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3972cf7fa4294436cf466805e29c3649297019b9ddfaa99738462a687086a327. Chain 2 (Bitcoin): anchored in block 959037 (2026-07-21T16:59:47Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MYA119100033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x091aed2b68b82dcbacda5f5e0079ef183d604b22924563fb8f000febc95e23ba. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MYA119100037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dd0c9e16360e4454e5fe24122ad99eba292f86ec855ccd738dad2b99bdcf8db. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MYA118700029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b18c0e3b3dd9af868c999d7ff3d53e18b2c414de5ebfeec786b5b486d208ccf. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MYA118800042.
Live and Unplugged at Planet Hollywood 06
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97244cbc53e67d21199b74d83b174de4721cc0f262ef3018ab6fddefa65648db. Chain 2 (Bitcoin): anchored in block 958703 (2026-07-19T08:36:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MYNV10900108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51c84466a470a67f7d456acbbd3861fd37792e5e9220b88234bbb0d863963da8. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MYA118600066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dd0c9e16360e4454e5fe24122ad99eba292f86ec855ccd738dad2b99bdcf8db. Chain 2 (Bitcoin): anchored in block 960250 (2026-07-30T11:13:28Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MYA118700029.